Chemistry Which is the purest form of iron? Steel Cast iron Wrought iron Pig iron Steel Cast iron Wrought iron Pig iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of safety matches? Phosphorus Silicon Sodium Graphite Phosphorus Silicon Sodium Graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is 5x/36 5x x/6 7.2 x 5x/36 5x x/6 7.2 x ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tear gas used by the police to disperse the mob contains Chlorine Hydrogen sulphide Carbon dioxide Ammonia Chlorine Hydrogen sulphide Carbon dioxide Ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method of concentrating the ore which makes use of the difference in density between ore and impurities is called liquation magnetic separation levigation leaching liquation magnetic separation levigation leaching ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of rat poison is Zinc oxide Lead nitrate Zinc phosphide Potassium cyanide Zinc oxide Lead nitrate Zinc phosphide Potassium cyanide ANSWER DOWNLOAD EXAMIANS APP
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